zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libm/w_exp2.c b/ap/build/uClibc/libm/w_exp2.c
new file mode 100644
index 0000000..e00277a
--- /dev/null
+++ b/ap/build/uClibc/libm/w_exp2.c
@@ -0,0 +1,19 @@
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+double exp2(double x)
+{
+ return pow(2.0, x);
+}
+libm_hidden_def(exp2)